The Computer Language
25.03 Benchmarks Game

Swift versus Java naot

How the programs are written matters! Always look at the source code.

If the fastest programs are flagged * possible hand-written vector instructions or "unsafe" or naked ffi, does the host language matter? You might be more interested in the less optimised programs — more seconds, less gz source code.

fannkuch-redux      
  elapsed Mean or 95% CI      
source secs cpu secs mem gz make
* Swift #3 8.20 32.45—32.61 13,722 1103 12.93
Java naot #3 34.41 34.41 17,514 1264 98.17
Swift #8 34.68 34.68—34.74 13,484 470 12.33
Java naot 9.26 36.60 18,522 1289 96.54
Java naot #2 46.96 46.96 16,175 520 95.31
Java naot #8 51.93 51.94—51.98 16,269 517 93.86
n-body      
  elapsed Mean or 95% CI      
source secs cpu secs mem gz make
* Swift #3 5.45 5.44—5.48 24,928 1688 14.75
* Swift #4 5.48 5.49 24,846 1361 13.94
* Swift #5 5.52 5.50—5.55 24,928 1372 12.83
* Swift #7 5.53 5.52 24,932 1333 13.80
Swift #6 5.82 5.81 12,956 1213 12.42
Java naot #4 6.02 6.01—6.09 20,296 1495 145.73
Swift #8 6.66 6.56—6.95 12,804 1285 12.85
Java naot #2 6.77 6.77 19,952 1430 144.22
Java naot #3 6.77 6.75—6.83 19,923 1436 143.42
Java naot #5 7.23 7.21—7.27 19,972 1435 146.75
Java naot 7.26 7.25—7.29 24,383 1437 148.73
Java naot #8 7.30 7.29—7.33 19,862 1322 145.10
Swift 7.89 7.88 12,812 1210 12.10
Swift #9 287.37 287.38—288.05 24,793 1532 13.91
spectral-norm      
  elapsed Mean or 95% CI      
source secs cpu secs mem gz make
Java naot #8 5.35 5.35 20,886 453 146.59
Swift #8 5.36 5.35 24,859 411 14.09
Java naot 5.36 5.35 25,215 521 146.57
Swift #3 1.45 5.71 13,689 607 12.54
Java naot #2 1.47 5.71 26,616 956 142.41
Java naot #3 1.47 5.72 29,483 762 144.71
mandelbrot      
  elapsed Mean or 95% CI      
source secs cpu secs mem gz make
* Swift #7 1.35 5.29 57,836 1147 14.15
* Swift #6 1.48 5.80 60,985 1147 14.36
Java naot #6 3.96 15.67 58,348 808 97.90
Java naot #4 4.27 15.76 82,633 667 96.47
Java naot #2 4.01 15.87 58,278 802 96.26
Swift #8 25.62 25.60—25.64 12,784 426 11.26
Swift 26.55 26.54 12,780 400 12.99
Swift #5 7.27 27.13 49,312 665 13.83
Java naot #8 28.57 28.53—28.69 16,392 441 95.54
Java naot 30.59 30.44—30.97 19,927 671 146.91
Java naot #3 7.80 31.00 63,054 910 145.66
* Swift #3   Bad Output  
fasta      
  elapsed Mean or 95% CI      
source secs cpu secs mem gz make
Java naot #6 1.11 3.19 23,798 2549 95.92
Java naot #4 3.26 3.26 16,400 1528 95.52
Java naot #5 1.13 3.80 24,113 2478 95.50
* Swift 5.37 5.38 12,546 1533 13.34
* Swift #3 2.20 5.37 39,002 2097 14.73
* Swift #2 3.15 5.63—5.96 13,726 1952 14.91
Java naot #2 5.69 5.70 16,146 1259 97.56
Java naot #8 10.45 10.48—10.54 103,199 894 93.89
Swift #8 18.19 18.18—18.35 12,829 828 11.99
k-nucleotide      
  elapsed Mean or 95% CI      
source secs cpu secs mem gz make
Java naot 6.25 20.46—20.50 366,531 1821 150.33
Java naot #3 8.31 28.22—28.29 363,635 1642 150.99
Java naot #6 8.35 28.25—28.30 397,414 1614 150.20
Java naot #4 36.76 36.75—38.47 183,878 1887 150.92
Java naot #5 22.53 51.46—52.54 203,649 2225 152.81
* Swift #2 14.45 54.24—57.70 273,949 1373 15.39
Java naot #8 85.57 87.80—89.42 1,782,706 786 149.27
Swift #8 166.95 168.68—173.38 650,023 658 14.46
Swift #7 223.40 226.91—248.09 650,023 607 13.04
Swift   Empty  
reverse-complement      
  elapsed Mean or 95% CI      
source secs cpu secs mem gz make
* Swift 2.05 2.48 825,635 1293 14.28
Java naot #6 4.05 4.72—4.77 2,063,376 760 94.05
Java naot #5 6.03 6.05 1,100,202 1115 95.80
Java naot #4 6.75 6.76 1,914,102 656 95.45
Java naot #3   Bad Output  
Java naot #7   Bad Output  
binary-trees      [ Contentious. Different approaches. ]
  elapsed Mean or 95% CI      
source secs cpu secs mem gz make
Java naot #3 4.85 4.85—4.91 290,574 546 96.06
Java naot #6 5.12 5.13—5.17 299,389 535 97.18
Java naot #2 5.15 5.17—5.27 299,610 558 96.54
Java naot #4 5.54 5.54—5.76 305,373 846 95.54
Java naot #7 3.90 7.33—7.53 338,911 841 95.08
Swift 18.21 54.03—54.29 763,523 720 13.97
Swift #4 17.62 54.69—59.64 733,094 772 13.31
Swift #5 18.90 56.44—56.88 764,391 813 14.89
Swift #3 18.26 58.41—58.87 733,180 868 18.46
Swift #2 18.24 58.41—58.84 732,828 822 14.89
* Swift #9   Empty  
pidigits      [ Contentious. Different libraries. ]
  elapsed Mean or 95% CI      
source secs cpu secs mem gz make
* Swift #2 0.76 0.75 14,459 606 12.50
* Java naot #5 8.09 8.12—8.18 230,797 925 167.91
Java naot 8.86 8.91 304,071 807 100.74
* Java naot #2   Empty  
* Java naot #4   Empty  
* Java naot #3   Empty  
regex-redux      [ Contentious. Different libraries. ]
  elapsed Mean or 95% CI      
source secs cpu secs mem gz make
* Java naot #4 1.38 3.98 554,586 2441 167.77
Java naot 11.36 20.96—21.08 280,367 875 101.78
Java naot #6 7.66 21.95—21.99 392,942 746 101.47
Java naot #3 7.63 22.03—22.08 383,447 935 102.19
Swift #2 39.33 39.34—39.45 710,697 678 13.66
Swift 23.92 40.23—40.37 922,243 721 13.56
Swift #4 18.21 41.75—42.40 1,102,254 751 13.30
* Java naot #2   Empty  
Swift

Swift version 6.0.3
(swift-6.0.3-RELEASE)
Target: x86_64-unknown-linux-gnu

Java naot

native-image 23.0.2 2025-01-21
GraalVM Runtime Environment
Oracle GraalVM 23.0.2+7.1